If you happen to live in western Europe, northwest Africa, the eastern half of North America or anywhere in South America, you’re in luck. Tonight will be the only full lunar eclipse we’ll be experiencing until 2010, so it’s definitely something to check out. For those who aren’t sure, the lunar eclipse is when the Sun, Earth, and Moon all align, causing the Earth’s shadow to fall on the moon.

Where you are determines when you need to keep a watch, so here’s a list of some of the places you just might be, which I stole from the Facebook group I joined to remind myself: